LAX to Quantum Leap
8 connections
LAX
Lost
You can see advertisments for Oceanic Airlines in a LAX terminal, which is the airline of the plane that crashed on Lost
Veronica Mars
In an episode of Veronica Mars, Veronica's fortune cookie had the numbers that won Hurley from Lost the lottery.
The X-Files
The mugshot of Malcolm T Wiggins from the X-Files episode "Titonus" appears on the wall of a police interrogation room in the Veronica Mars episode "Leave it to Beaver." Also the fictional car rental company Lariat where Mulder & Scully always rented their cars was featured prominently on the Veronica Mars episode "Rat Saw God."
Homicide: Life On The Street
Homicide's John Munch questioned The X-Files' The Lone Gunmen.
Law & Order: Special Victims Unit
John Munch was a detective Homicide and then SVU
Murder, She Wrote
Jessica Fletcher taught criminology at Hudson University, where various Law & Order characters attended
Magnum P.I.
Murder, She Wrote had a two episode crossover with Magnum P.I.
Quantum Leap
Samuel Beckett from Quantum Leap knew a minor character on Magnum P.I.